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目的 探讨结肠腺瘤 ,结肠癌 ,结肠憩室 ,溃疡性结肠炎 ,结肠黑变病等病变的CT仿真结肠镜表现 ,初步评价其在结肠病灶诊断中的应用价值。方法 37例病人 (包括 2 0例结肠腺瘤 ,6例结肠癌 ,4例憩室 ,5例溃疡性结肠炎 ,结肠黑变病及结肠淀粉样变各 1例 )行CT仿真结肠镜并和结肠镜检查结果作对照 ,男 2 6例 ,女 11例。结果 CT仿真结肠镜对结肠癌和结肠腺瘤、结肠憩室有较高的辨别率 ,成功地检出了 6例结肠癌、17例结肠腺瘤和 4例结肠憩室 ,而对于溃疡性结肠炎则辨别率较低 ,仅发现 5例中的 2例 ,对结肠黑变病和结肠淀粉样变则未检出。结论 CT仿真结肠镜能成功检出全部结肠癌 ,憩室及大部分腺瘤 ,部分溃疡性结肠炎。CT仿真结肠镜优点在于快速 ,无创伤性 ,病人耐受性好 ,容易接受。其缺点是不能直视下活检 ,对于小于 0 .5cm的病灶以及较为平坦的 ,表浅的病灶 ,显示率不高 ,无法显示黏膜色泽变化等。可以认为 ,CT仿真结肠镜虽无法完全替代结肠镜 ,但却是结肠镜一项良好的补充检查手段。它可能成为结肠病灶诊断的有效手段 ,可广泛应用于息肉切除术后的随访以及结肠癌的筛选
Objective To investigate the CT colonoscopy findings of colon adenoma, colon cancer, colonic diverticula, ulcerative colitis and colonic melanosis, and to evaluate its value in the diagnosis of colonic lesions. Methods 37 patients (including 20 cases of colon adenoma, 6 cases of colon cancer, 4 cases of diverticulum, 5 cases of ulcerative colitis, 1 case of colitis and 1 case of colon amyloidosis) underwent colonoscopy and colonic colonoscopy Mirror examination results as a control, 26 males and 11 females. Results CT simulation colonoscopy colon cancer and colon adenomas, colon diverticula have a higher resolution, successfully detected in 6 cases of colon cancer, 17 cases of colon adenoma and 4 cases of colonic diverticulitis, while for ulcerative colitis Discrimination rate is low, only found in 5 cases of 2 cases of colon melanosis and colon amyloidosis were not detected. Conclusion CT colonoscopy can successfully detect all colon cancer, diverticulum and most adenomas, and some ulcerative colitis. CT simulation colonoscopy has the advantage of rapid, non-invasive, patient tolerability, easy to accept. The disadvantage is not under direct biopsy, for less than 0.5cm lesions and relatively flat, superficial lesions, the display rate is not high, can not display changes in mucosal color and so on. Can think, CT simulation colonoscopy can not completely replace colonoscopy, but it is a good colonoscopy complement test. It may become an effective method for the diagnosis of colonic lesions and can be widely used in the follow-up after polypectomy and colon cancer screening